Samsung AM JXVHGH Series - Page 48

48
Refrigerant pipe installation
 Method to calculate total amount of additional refrigerant
- Amount of additional refrigerant depending on the pipe length (ⓐ)
- Amount of additional refrigerant for each indoor unit (ⓑ) = ∑(Amount of additional refrigerant for each
connected indoor unit)  Refer to the table
- Total amount of additional refrigerant = ⓐ+ⓑ
 Sum of total amount of additional refrigerant and the basic amount of refrigerant should not exceed 100kg. If the
refrigerant exceeds 100kg, separate the module so that weight of the refrigerant doesn't exceed 100kg.
Ex.) For AM200FXVAG, basic amount of refrigerant is 8.4kg, therefore total amount of additional refrigerant
(ⓐ+ⓑ) should not exceed 91.6kg.
 Example of refrigerant calculation for HP models
Classication Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
① ② ①×② ∑(①×②)
Liquid pipe (ⓐ)
Ø 6.35 35 0.02 0.7
ⓐ 5.575
Ø 9.52 50 0.06 3.0
Ø 12.70 15 0.125 1.875
Classication
Model name of
indoor unit
Number of units
Unit amount of
refrigerant (kg/EA)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
① ② ①×② ∑(①×②)
Indoor unit (ⓑ)
4way cassette
(AM071FN4DEH)
4 0.45 1.80
ⓑ 3.10
Slim duct
(AM056FNLDEH)
2 0.35 0.70
Slim duct
(AM045FNLDEH)
1 0.35 0.35
1way cassette
(AM036FN1DEH)
1 0.25 0.25
- Total amount of refrigerant (ⓐ+ⓑ) = 5.575+3.10 = 8.675 (kg)
 Example of refrigerant calculation for HR models
Classication Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
① ② ①×② ∑(①×②)
Liquid pipe (ⓐ)
Ø 6.35 15 0.02 0.3
ⓐ 11.965
Ø 9.52 112 0.06 6.72
Ø 12.70 25 0.125 3.125
Ø 15.88 10 0.18 1.8
Ø 6.35
(EEV Kit ~ indoor
unit)
2 0.01 0.02
DVM S HE_IM_DB68-05461A-08_EN.indd 48 2017-03-24 오후 1:38:22